Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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(1 point) What plant cell part captures energy from
the sun to make food?
a. | chloroplasts | c. | cell membranes | b. | cell walls | d. | vacuoles |
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2.
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(1 point) Photosynthesis is important because
a. | plants need air to breathe. | b. | it makes the plants green. | c. | photosynthetic
organisms form the base of most food chains. | d. | without it, the Earth would all be
desert. |
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3.
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(1 point) Carrying oxygen and nutrients, fighting
pathogens, and reducing blood loss are some of the functions of
a. | lymph. | c. | the lungs. | b. | blood. | d. | the thymus. |
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4.
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(1 point) The right side of your heart pumps blood
that needs
a. | oxygen. | c. | nitrogen. | b. | carbon-dioxide. | d. | hydrogen. |
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5.
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(1 point) Which of the following organs uses chemical
and mechanical digestion to break food into nutrients?
a. | the esophagus | c. | the gallbladder | b. | the stomach | d. | the large
intestine |
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6.
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(1 point) Which of the following is NOT a true
statement about the liver?
a. | It breaks down toxins. | c. | It makes bile to break up fat. | b. | It stores extra
nutrients. | d. | It cleans the
blood with nephrons. |
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True/False
Indicate whether the
statement is true or false.
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1.
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(1 point) High blood pressure makes arteries
stronger.
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2.
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(1 point) Arteries carry blood to the body and to the
lungs.
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3.
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(1 point) There are two main bronchi—one for
each lung—in the human body.
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4.
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(1 point) Digestion begins when food reaches the
stomach.
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5.
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(1 point) Saliva contains enzymes which begin the
chemical digestion of food.
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6.
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(1 point) The esophagus connects the mouth with the
small intestine.
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